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» Film-Tech Forum   » Operations   » Film Handlers' Forum   » Early CP65 to SR

   
Author Topic: Early CP65 to SR
Marco Giustini
Film God

Posts: 2706
From: Reading, UK
Registered: Nov 2007


 - posted 04-13-2019 11:00 AM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
Hi all,

I've recently acquired an old CP65 with a Dolby A card inside. I plugged my Cat.222 A/SR card in it but I cannot select Dolby SR.

Looking on the Cat. 222-A/SR installation manual, it seems that my CP65 is an early unit and the backplane needs an extra little daughterboard (cat. 565) to have Dolby SR to work.

I was just wondering if anybody knew an alternative procedure as I doubt I can source one of those cards nowadays.

Thanks!

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Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12774
From: Annapolis, MD
Registered: Dec 1999


 - posted 04-13-2019 12:17 PM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
How about locating a pair of CAT350s and have REAL SR?

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Marco Giustini
Film God

Posts: 2706
From: Reading, UK
Registered: Nov 2007


 - posted 04-13-2019 01:23 PM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
it's a home project and I have another CP55 which is capable of SR so I'm not looking to invest too much money on it! But thanks!

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Mark Gulbrandsen
Resident Trollmaster

Posts: 16628
From: Bountiful, Utah
Registered: Jun 99


 - posted 04-13-2019 03:30 PM      Profile for Mark Gulbrandsen   Email Mark Gulbrandsen   Send New Private Message       Edit/Delete Post 
Before you doubt you can get a CAT 565 ask Sam Chavez if he has one. He has lots of Dolby stuff in stock. I think the optical preamp in the 65 is a little better, but I also used a CP-55 at home for a number of years and it sounded great, mine was fully modified with all the bells and whistles. Its still playing away in a friends home screening room.

Mark

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